Improvement in machines for cutting shoe-pegs



UNrTED STATES PATENT OEEICEo STEPHEi\T K. BALDWIN, OF GILFORD, NEVHAMPSHIRE.

IMPROVEMENT IN MACHINES FOR CUTTING SHOE-PEGS.

Specilication forming part of Letters Patent No. 2,725, dated July16,1842.

,T0 all whom it may concern.'

Be it known that I, STEPHEN K. BALDWIN, of Gilford, in the county ofBelknap and State of New Hampshire, have invented a new and usefulImprovement in the Machine for Cutting Pegs, which is described asfollow, reference being had to the annexed drawing ofthe same, makingpart of this specification.

The figure is a perspective view.

Similar letters refer to corresponding parts.

rlhe bench or frame A, for supporting the several parts hereinafterdescribed, and upon which the fiuted block to be cut into pegs isplaced, is made in the usual manner. A post, B, (to which one end of theknife for cutting the pegs and an arm resting on the back of the knifeare attached,) is passed vertically through an aperture in the bench,being secured therein by keys or wedges, so that it can be raised orlowered at pleasure for the purpose of setting the end of the knifeattached thereto higher or lower, at pleasure.

rIhe shearing-knife O, for cutting the block into pegs, is made ofsteel, tapered. It is attached to the post B by a bolt passed through itand a curved projection of the large end of the knife, and on which itmoves or vibrates. The small end of the knife is attached to awhip-staff by a horizontal pin or bolt passed through them.

The whip-staff l) is made in the usual inanner, and is attached by itslower end to the wrist of a crank, E, on the end of a revolving shaft,F, on which there is a fast pulley, G, and a loose pulley, H, of theusual form and construction.

A sliding box, I, in which the wrist of the crank turns, is raised andlowered by keys K for increasing or diminishing the sweep of the knifeby increasing or diminishing the distance between the Wrist and theknife, is combined with the whip-staff near the lower end thereof. Thissliding box is a rectangular block placed in a rectangular mortise inthe whip-staff of the same width as the block, but greater length, so asto allow it-su'fficient play therein, having wedge-shaped keys Kinserted in said mortise at each endof the sliding box. The aperture inthe box for the wrist is of the saine diameter as the wrist. Theslidingframe, containing the iiuted roller for holding down the flutedblock or bolt upon the bench and for drawing it forward to the knife, iscomposed of two vertical timbers, L L, which pass through mortises -inthe bench placed at the required distance apart, and united by ahorizontal transverse timber, M, mortised and tenened into the same.

The luted roller() is made the length of the frame inside and ofsufficient diameter, and turns on pivots or gudgeons in said frame.Mortises or slots are made in the vertical sides of said frame to permitthem to rise and fall over horizontal plates P, secured across theopenings in the bench in which the frame rises and falls. Two verticalscrews, Q, for raising and lowering the frame, are inserted into theupper ends of the side pieces of the frame, extending down into theaforesaid mortises and resting upon the fixed horizontal plates P of thebench,crossing said mortises. When the frame is to be raised, the screwsQ are turned to the right, and when it is to be lowered they are turnedto the left, the weight of the frame and roller causing it to descend. Aweight, R, may be attached to lthe lower cross-bar, M, of the frame forholding down the roller upon the iiuted bolt, or to one end of a lever,S, resting upon said cross-bar M, its other end bearing against a spiralspring (represented by dotted lines at Z) placed between it and theunder side of the top of the bench A.

The machine is rendered self-feeding in the following manner: Ou one endof the iiuted roller is fixed a toothed wheel, U, made like a circularsaw. Over this wheel is arranged a reaching-arm, V, having an oblongmortise in the same, in which the toothed wheel turns. The upper end ofthis reaching-arm is attached to a vibrating bar or lever,W, one end ofsaid bar or lever being attached to the head of the post B by a bolt,which will be the fulcrum, while its other end is passed through amortise in a shifting block, X, which rests upon the back of the cutterC, said block X being made adjustable on said bar by keys or wedges Y,for the purpose of moving the block nearer to or farther from thefulcruni for increasing or diminishing the sweep or movement of thelever, and consequently that of the reaching-arm and toothed wheel.

A spiral spring, d, is attached to the bench and to the reachingarin fordrawing down the atter.

Operation: A baud, J, leading from the driving-power, being shifted fromthe loose pulley H to the fast pulley G, the machine will be put inmotion, and as the crank-shaft F turns it raises the knife C by thewhip-staff D, and at the same time the lever WV and reaching-arm V,which turns the ratchet-Wheel U and roller O, which feeds up the flutedbolt b as far as the required thickness of the peg to be cut, and, thecrankshaft continuing to revolve, brings down the knife C, makes a eutthe thickness of the pegs, at the same time bringing down thereaching-arm W for a new hold ou the toothed Wheell` the arm slippingover the backs of the teeth, which are sloped downward to allow of thismovement. In this manner the operation is continued until the bolt iscut in parallel cuts from one end tothe other. The bolt is then turnedround and cut at right angles to the former cuts in the same manner,which completes the operation. The bolt b is previously furrowed,grooved, or sawed in parallel lines at right angles in the manner thatit is required to be cut up into pegs. The teeth or ribs of the rollerenter the channels or grooves of the bolt previously sawed therein.

What I claim as my invention, and which I desire to secure by LettersPatent, is

The method of feeding the bolt by the combination of the fluted roller,ratchet-Wheel, and reachingerm, and adjustable lever connected with thevibrating knife, as before described.

STEPHEN K. BALDWIN. Witnesses:

H. L. HAZELTON, W. M. LADD.

